King Arms TWS 9mm GBBR (6" M-Lok , BK)
 
Main Material:  Aluminum And Zinc Alloy
CNC Alumimium Golden Bolt
Metal outer barrel and delta ring mount to avoid wobbling.
Well-polished precise 6.05mm brass inner barrel lets every shot more accurate
Power Source: 134A (8kgs) / Top Gas (12kgs)
Fire Mode:  Safe/Single/Full-Auto
Capacity: 30rounds
No Marking Version